# Warning messages using PStore in Ruby 1.91

**URL:** <https://www.ruby-forum.com/t/warning-messages-using-pstore-in-ruby-1-91/197102>\
**Category:** Ruby\
**Created:** [September 30, 2009, 1:30am UTC](https://www.ruby-forum.com/t/warning-messages-using-pstore-in-ruby-1-91/197102 "2009-09-30T01:30:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Eric\_Hutton](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/e/c77e96/32.png) [@Eric\_Hutton](https://www.ruby-forum.com/u/Eric_Hutton)\
**Post date:** [September 30, 2009, 1:30am UTC](https://www.ruby-forum.com/t/warning-messages-using-pstore-in-ruby-1-91/197102/1 "2009-09-30T01:30:00Z")

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Hi all,

I’m running Ruby 1.91 and I’m getting the following two warning messages  
when using PStore:

C:/tools/ruby19/lib/ruby/1.9.1/pstore.rb:134: warning: instance variable  
@thread\_safe not initialized

C:/tools/ruby19/lib/ruby/1.9.1/pstore.rb:452: warning: method redefined;  
discarding old marshal\_dump\_supports\_canonical\_option?

Anyone else been seeing these?